Physics A (9-1) - Gateway Science Suite J249 9-1: Global challenges Topical Past Paper Questions

(a) The Earth orbits the Sun. Which statement is correct? Tick (✓) one box. The direction of the velocity of the Earth is towards the Sun. The Earth is accelerating. The Earth's velocity is the same as its speed. The velocity of the Earth stays constant. ## (b) All objects emit r…

(a) The Sun is a star. Describe how the Sun was formed. .....[3] (b)* Nuclear power stations use nuclear fission rather than nuclear fusion to generate energy. This graph shows how the probability of a nuclear fusion reaction changes with temperature. Probability of nuclear fusio…

A van travels along a road at a constant speed. (a) The van brakes and decelerates at a constant rate: The initial speed of the van is $ 18 \, m/s $. • The deceleration of the van is $ 1.5 \, m/s^{2} $. Calculate the time taken for the van to stop. Use the equation: acceleration…